Now that the Walking Dead panel from SDCC has wrapped up, AMC has released the trailer they showed to attendees. Will Romine who attended the panel lets us know that The Kingdom will be introduced next season. The Kingdom is a community of survivors in Washington, D.C., based at a high school who have built up a wall of buses and sheets of metal around the school. It first appears in The Walking Dead #108.
Ezekiel and Shiva will also be joining the cast. Ezekiel will be played by Khary Payton, a younger casting than in the comics.
UK trailer below US.